3-15岁儿童散光分布特征

目的调查3-15岁儿童散光的发生情况,探讨该人群中散光的主要类型,分布规律以及与矫正视力的关系。方法从以人群为基础的3-15岁天津市儿童眼病流行病学调查资料中分层随机抽取3-15岁儿童2070例(4140只眼),进行散光统计分析。结果在2070例儿童中,散光(≥0.5D)者972例,检出率为46.96%;其中0.50-1.00D占71.20%,1.25-2.00D占18.29%。散光轴向分布以顺规散光为主(78.02%)。3-8岁儿童以复性远视散光为主(44.13%),9-15岁儿童以复性近视散光为主(58.51%)。在1542只散光眼中,矫正视力≥0.8者1390眼(90.14%),矫正视力<0.8者152只眼(9.86%)。结论散光在3-15岁人群中的检出率为46.96%,各年龄组散光度分布均以低中度散光为主,3-8岁儿童以复性远视散光为主,9-15岁儿童以复性近视散光为主,高度散光是视力低下的原因之一。

Distribution rule of astismatism in children aged 3-15

Objective To study the prevalence,type,distribution rule of astigmatism and the relation- ship with corrected vision acuity in children aged 3-15. Method Sample including 2070 cases is derived from the epidemical investigation data of 3-15 aged children based on population by layered sample, then to analysis statistically. Result astigmatism of 972 cases is more than 0.5dioptor(0.5D),the prevalence is 46.96%; astig- matism 0.50D to 1.00 D account for 71.20%,astigmatism 1.25D to 2.00D is 18.29%.with the rule astigmatism is predominant. The main type in 3-8 aged children is compound hypermetropia astigmatism(44.13%),the main type in 9-15 aged children is compound myopia astigmatism(58.51%).In 1542 astigmatism eyes,1390 eyes obtain corrected vision acuity more than 0.8(90.14%),corrected vision acuity of 152 eyes is less than 0.8(9.86%) Conclusion The prevalence of astigmatism more than 0.5dioptor is 46.96% in children aged 3-15;with the rule astigmatism and low,medium-grade astigmatism is predominant, the main type in 3-8 aged children is com- pound hypermetropia astigmatism, the main type in 9-15 aged children is compound myopia astigmatism; high- grade astigmatismin the main cause of low vision.